The Muncie A20 Series 10-Bolt Clutch Shift Power Takeoff, part number A20-A1006-HX31XUX or A20A1006HX31XUX, is a medium-duty PTO designed specifically for Allison 3000 and 4000 Series transmissions. The A20 Series mounts with a 10-bolt pattern and uses a proven clutch pack design to engage and disengage the PTO. Tapered roller bearings support extended service life, and the increased-diameter output shaft handles the demands of continuous-duty hydraulic applications. The shift cover rotates 360 degrees, and the pump flange is rotatable, giving installers more flexibility. Three housing arrangements are available across the series, and the unit is compatible with Muncie's EX Drive shaft extension. Call us to confirm proper fit for your application.
Features
10-bolt clutch shift mounting for Allison 3000 and 4000 Series transmissions
Rotatable pump flange and 360-degree rotating shift cover for flexible installation
Proven clutch pack design with tapered roller bearings for extended PTO life
Increased output shaft diameter for higher durability in continuous-duty use
Reduced leak paths and maximized gear geometry for quieter operation
Compatible with Muncie EX Drive shaft extension; extended-length PTO mounting fasteners included
Tech Specs
- Part Number: A20-A1006-HX31XUX or A20A1006HX31XUX
- Brand: Muncie Power Products
- Series: A20 Series
- Shift Type: Clutch Shift
- Mounting: 10-Bolt
- Compatible Transmissions: Allison 3000 Series and 4000 Series
- Rating Type: Single intermittent/continuous torque rating
- Housing Arrangements: Three available
- EX Drive Compatibility: Compatible with Muncie EX Drive shaft extension
Additional Information
| SPEED | 3000 SERIES | 4000 SERIES | INTERMITTENT CONTINUOUS HP (KW) | INTERMITTENT/CONTINOUS |
| RATIO | ENGINE % | ENGINE % | @ 1,000 RPM | TORQUE LBS.FT. (NM) |
| 5 | 74% | 105% | 77 (57) | 400 (542) |
| 6 | 85% | 122% | 77 (57) | 400 (542) |
| 7 | 99% | 141% | 79 (59) | 415 (563) |
| 8 | 114% | 163% | 69 (51) | 360 (488) |
| 9 | 122% | 175% | 65 (48) | 340 (461) |
| 10 | 131% | 187% | 59 (44) | 310 (420) |
| 11 | 151% | 215% | 52 (39) | 275 (373) |
| 12 | 162% | 231% | 50 (37) | 265 (359) |
| 15 | 201% | 287% | 39 (29) | 205 (278) |
